netdev - Re: [PATCH] xen/netback: avoid race in xenvif_rx_ring_slots

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 4 Feb 2021 06:32:32 +0100
From:   Jürgen Groß <jgross@...e.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     xen-devel@...ts.xenproject.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Wei Liu <wei.liu@...nel.org>,
        Paul Durrant <paul@....org>,
        "David S. Miller" <davem@...emloft.net>,
        Igor Druzhinin <igor.druzhinin@...rix.com>,
        stable@...r.kernel.org
Subject: Re: [PATCH] xen/netback: avoid race in
 xenvif_rx_ring_slots_available()

On 04.02.21 00:48, Jakub Kicinski wrote:
> On Tue,  2 Feb 2021 08:09:38 +0100 Juergen Gross wrote:
>> Since commit 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding")
>> xenvif_rx_ring_slots_available() is no longer called only from the rx
>> queue kernel thread, so it needs to access the rx queue with the
>> associated queue held.
>>
>> Reported-by: Igor Druzhinin <igor.druzhinin@...rix.com>
>> Fixes: 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding")
>> Cc: stable@...r.kernel.org
>> Signed-off-by: Juergen Gross <jgross@...e.com>
> 
> Should we route this change via networking trees? I see the bug did not
> go through networking :)
> 

I'm fine with either networking or the Xen tree. It should be included
in 5.11, though. So if you are willing to take it, please do so.


Juergen

Download attachment "OpenPGP_0xB0DE9DD628BF132F.asc" of type "application/pgp-keys" (3092 bytes)

Download attachment "OpenPGP_signature" of type "application/pgp-signature" (496 bytes)